Table 1.
Relationship between baseline measures and their association with whether the spot protein/creatinine ratio were deemed to be reliable, problematic, or unreliable
| Demographic | Reliable | Problematic | Unreliable | P value |
|---|---|---|---|---|
| Sex (F/M) | 39/3 | 23/2 | 32/4 | NDa |
| Race (B/W/O) | 22/20/0 | 6/16/3 | 12/17/7 | NDa |
| Age (yr)b | 29.5 (25.0−37.0) | 28.0 (24.5−26.5) | 32 (25.0−45.0) | 0.400c |
| Weight (kg)b | 72.0 (64.1−88.5) | 62.1 (51.4−81.0) | 70.6 (63.1−79.4) | 0.089c |
| Serum albumin (g/dl)b | 2.9 (2.6−3.3) | 2.7 (2.2−3.2) | 2.7 (2.1−3.4) | 0.181d |
| Serum creatinine(mg/dl)b | 0.94 (0.70−1.20) | 0.78 (0.60−1.38) | 1.00 (0.80−1.24) | 0.158c |
| 24-hour PCRb | 2.3 (1.3−3.3) | 3.5 (2.1−5.9) | 2.3 (1.6−5.6) | 0.046c |
| Abatacept/placebo | 18/24 | 15/10 | 19/17 | 0.376a |
| ACE inhibitor and/or ARB | 22 | — | 21 | 0.652a |
ACE, angiotensin-converting enzyme; ARB, angiotensin receptor blocker; B/W/O, black, white, other race; ND, analysis not performed due to insufficient sample size; PCR, protein/creatinine ratio.
a
By Fisher exact test.
b
Median (intraquartiles).
c
By Kruskal-Wallis test.
d
By 1-way analysis of variance.